| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * FFV1 codec | ||
| 3 | * | ||
| 4 | * Copyright (c) 2003-2013 Michael Niedermayer <michaelni@gmx.at> | ||
| 5 | * | ||
| 6 | * This file is part of FFmpeg. | ||
| 7 | * | ||
| 8 | * FFmpeg is free software; you can redistribute it and/or | ||
| 9 | * modify it under the terms of the GNU Lesser General Public | ||
| 10 | * License as published by the Free Software Foundation; either | ||
| 11 | * version 2.1 of the License, or (at your option) any later version. | ||
| 12 | * | ||
| 13 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 16 | * Lesser General Public License for more details. | ||
| 17 | * | ||
| 18 | * You should have received a copy of the GNU Lesser General Public | ||
| 19 | * License along with FFmpeg; if not, write to the Free Software | ||
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 21 | */ | ||
| 22 | |||
| 23 | 1517236708 | static inline int RENAME(predict)(TYPE *src, TYPE *last) | |
| 24 | { | ||
| 25 | 1517236708 | const int LT = last[-1]; | |
| 26 | 1517236708 | const int T = last[0]; | |
| 27 | 1517236708 | const int L = src[-1]; | |
| 28 | |||
| 29 | 1517236708 | return mid_pred(L, L + T - LT, T); | |
| 30 | } | ||
| 31 | |||
| 32 | 758617848 | static inline int RENAME(get_context)(const int16_t quant_table[MAX_CONTEXT_INPUTS][MAX_QUANT_TABLE_SIZE], | |
| 33 | TYPE *src, TYPE *last, TYPE *last2) | ||
| 34 | { | ||
| 35 | 758617848 | const int LT = last[-1]; | |
| 36 | 758617848 | const int T = last[0]; | |
| 37 | 758617848 | const int RT = last[1]; | |
| 38 | 758617848 | const int L = src[-1]; | |
| 39 | |||
| 40 | 758617848 | if (quant_table[3][127] || quant_table[4][127]) { | |
| 41 | 161363432 | const int TT = last2[0]; | |
| 42 | 161363432 | const int LL = src[-2]; | |
| 43 | 161363432 | return quant_table[0][(L - LT) & MAX_QUANT_TABLE_MASK] + | |
| 44 | 161363432 | quant_table[1][(LT - T) & MAX_QUANT_TABLE_MASK] + | |
| 45 | 161363432 | quant_table[2][(T - RT) & MAX_QUANT_TABLE_MASK] + | |
| 46 | 161363432 | quant_table[3][(LL - L) & MAX_QUANT_TABLE_MASK] + | |
| 47 | 161363432 | quant_table[4][(TT - T) & MAX_QUANT_TABLE_MASK]; | |
| 48 | } else | ||
| 49 | 597254416 | return quant_table[0][(L - LT) & MAX_QUANT_TABLE_MASK] + | |
| 50 | 597254416 | quant_table[1][(LT - T) & MAX_QUANT_TABLE_MASK] + | |
| 51 | 597254416 | quant_table[2][(T - RT) & MAX_QUANT_TABLE_MASK]; | |
| 52 | } | ||
| 53 | |||
| 54 |